The Middle Earth Paradigm (I made Sheldon's "Doppler effect" costume for a con)

The Barbarian Sublimation (penny and online gaming)

I have these saved for "do not delete".

These are the three that I have kept on all my TiVos. Others I like I will either watch as reruns or have on dvd.

The Bath Gift item Hypothesis was great not just because of the ending but the play that came up to it with Sheldon trying to find a gift for Penny. Then she in one swoop blew all that he had picked out away.

Middle Earth - well Leonard made a great Hobbit, the scene of them all wanting to be the Flash, and as stated earlier, Sheldon's Doppler Effect costume which I loved so much I made and have worn most friday nights at cons I go to. Not great for picking up guys, but works well for making conversation. I had one guy stop me, look at my outfit and just go "vrrooom...vrroooom..." just as Sheldon did. It was great that he got it.

I will also have to give an honorable mention to the one where Amy gets the tiara. That has to have been one of the funniest moments of any TV show I can remember. It might just be a "best scene" instead of "best episode" but that was awesome.

For example, with The Irish Pub Formulation, it's not the episode so much as Sheldon's coming up with the word "un-unravelable" meaning a lie so convoluted that no one could ever figure it out.
We use that all the time in our house!

And The Lobenfield Decay was all about another convoluted cover story with guest star D.J. Qualls as drug addicted cousin Leo, plus Sheldon's retrieving the bag of chicken out of the garbage can in the lobby.

This could go on forever- even in the worst episode there is a gem or two.
And yes, the tiara scene was A+.

Lots of good choices, but I'd have to go with The Ornithophobia Diffusion.

Get back here you stupid bird, so I can love you!

I love Amys' comment
"Guess you gotta have hollow bones to get some sugar around here."

The use of the word 'sugar' is great.

I do agree that every show has at least one comment or scene that is great.

I still love to watch it even if Penny isn't as pretty. I was asking my sig' other 'what has happened to Penny?'. She said she is older, but I countered that "most women that take care of themselves peak at their beauty in the thirties or forties." She gave me a look like Amy gives Sheldon too many times, so I think I am trouble. I do always say that she is twice as beautiful as any of the girls, but I don't know if that comment saved me or not.